在职业任务期间验证力估计内用于计算压力中心和垂直地面反应力
Justin B Davidson1, Dennis J Larson1, Julia X Li1
1University of Waterloo, Waterloo, Canada.
Ergonomics
|July 24, 2025
概括
力量估计内在职业任务期间提供了一种移动方式来测量力和压力中心. 这项研究开发了一种用于三隔间内的方法,显示了准确的现场生物力学测量潜力.
科学领域:
- 生物力学 生物力学
- 职业健康 职业健康 职业健康
- 可穿戴技术可穿戴技术
背景情况:
- 鞋内力传感器为测量地面反应力 (GRF) 和压力中心 (CoP) 的实验室式力板提供了一个便携式的替代方案.
- 现有的研究缺乏对这些传感器用于职业任务的验证,以及开发的COP估计方法.
研究的目的:
- 开发和验证一种方法来估计GRF和COP,使用三分支力估计内.
- 引入和评估力漂移校正方法,以提高职业环境中的准确性.
主要方法:
- 39名参与者在穿着与强力板同步的强力内时执行职业任务 (提升,包装,托盘,肩上工作).
- 为COP估计开发了一个加权算法,并对GRF数据应用了线性漂移校正.
- 通过将内数据与使用根平均平方误差 (RMSE) 的力板测量数据进行比较来评估性能.
主要成果:
- 开发的COP估计方法产生了RMSE,范围为1.7至3.4厘米.
- 强力漂移校正方法减少了GRF RMSE大约28N.
- 这些结果表明,从内进行的力和COP测量的准确性有所提高.
结论:
- 通过开发的算法和漂移校正,三部分的力量估计内显示出有效的GRF和COP现场测量的潜力.
- 这些内是职业生物力学评估的有希望的工具,增强了移动性和实用性.
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